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=head1 NAME
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VLLog - Traces Volume Location Server operations
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=head1 DESCRIPTION
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The F<VLLog> file records a trace of Volume Location (VL) Server
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(B<vlserver> process) operations on the local machine and describes any
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error conditions it encounters.
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If the F<VLLog> file does not already exist in the
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F</usr/afs/logs> directory when the VL Server starts, the server
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process creates it and writes initial start-up messages to it. If there
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is an existing file, the VL Server renames it to F<VLLog.old>,
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overwriting the existing F<VLLog.old> file if it exists.
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The file is in ASCII format. Administrators listed in the
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F</usr/afs/etc/UserList> file can use the B<bos getlog> command to display
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its contents. Alternatively, log onto the server machine and use a text
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editor or a file display command such as the UNIX B<cat> command. By
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default, the mode bits on the F<VLLog> file grant the required C<r> (read)
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permission to all users.
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The VL Server records operations only as it completes them, and cannot
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recover from failures by reviewing the file. The log contents are useful
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for administrative evaluation of process failures and other problems.
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The VL Server can record messages at three levels of detail. By default,
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it records only very rudimentary messages. To increase logging to the
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first level of detail, issue the following command while logged onto the
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database server machine as the local superuser C<root>.
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# kill -TSTP <vlserver_pid>
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where <vlserver_pid> is the process ID of the vlserver process, as
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reported in the output from the standard UNIX B<ps> command. To increase
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to the second and third levels of detail, repeat the command.
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To disable logging, issue the following command.
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# kill -HUP <vlserver_pid>
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To decrease the level of logging, first completely disable it and then
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issue the C<kill -TSTP> command as many times as necessary to reach the
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desired level.
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=head1 SEE ALSO
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2005-12-14 01:30:20 +00:00
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L<UserList(5)>,
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L<bos_getlog(8)>,
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L<vlserver(8)>
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=head1 COPYRIGHT
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IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
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This documentation is covered by the IBM Public License Version 1.0. It was
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converted from HTML to POD by software written by Chas Williams and Russ
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Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.
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